Blue Slag Glass
Ferro-silicate glass (Slag)
igneous (man-made/industrial)
Category
Igneous (Man Made
Browse igneous (man made specimens identified by the Rock Identifier community.
N/A - Non-Geological Item
not a rock/mineral
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Unidentifiable Rock Fragment
Uncertain
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Synthetic material (Not a rock or mineral)
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
mineral
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
mineral
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Crushed Stone (Likely Limestone or Granite)
Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite
sedimentary or igneous
Diamond
Native Carbon (C)
mineral
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
igneous
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Synthetic Polymer (Synthetic Material)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Not a geological specimen
N/A (man-made object)
N/A
Not a rock, mineral, or geological specimen
N/A
Crackle Agate / Dyed Quartz
SiO2 (Silicon Dioxide)
mineral
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
mineral
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
mineral
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Mineral equivalent / Metal Alloy
Concrete Fragment
Hardened Portland cement and mineral aggregate
sedimentary (anthropogenic)
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
sedimentary (man-made conglomerate)
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
mineral
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Mineral alternative / Synthetic
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
mineraloid
Asphalt Concrete
Bituminous conglomerate
sedimentary
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
Goldstone
Aventurine Glass (Man-made)
mineral
Ring with an Orange Inlay
N/A (Man-made object)
Man-made Object (Ring)
Asphalt (Road Aggregate)
Bituminous conglomerate
sedimentary
Sandstone Concretion
Limonitic Sandstone Concretion
sedimentary
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
not a rock or mineral (anthropogenic material)
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Anthropogenic (Man-made)
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
mineraloid
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)